Reinforced concrete construction.



H; L. LEWEN. REINFORCED CONCRETE OOHBTBUOTIOIL. APPLIOATION FILED D30. 6, 1910.

Patented Malf. 14, 1911.

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UNITED STATES PATENT OFFICE.

HENRY L. LEWEN, OF NEW AYORK, N. Y.

REINFORCED CONCRETE CONSTRUCTION.

986,474. Specification of Letterslatent- Patented Mar. 14, 1911.

Application filed December 6, 1910. Serial No. 595,947.

To all whom it may concern: ished product before setting into a wall or Be it known that I, HENRY L. Lnwnn, a other part of a building, therefore, not recitizen of the United States, residing at quiring specially skilled labor in the con- New York, in the county of New York and struction of a building. The former appli- 60 State of New York, have invented certain cation also discloses single truss-rods passed new and useful Improvements in Reinforced through alternate of the hollow ribs and Concrete Construction, of which the followover intermediate ribs. ing is a specification. The present invention which is applicable This invention relates to a reinforced confor all the purposes for which the former 65 cre-te construction and it has particular refstructure was designed, is especially proerence to a novel reinforcing element and vided for the construction of curved surmeans for tying together several of such faces which are usually found in the devices elements to make a rigid reinforcement for heretofore mentioned; and in order that the concrete. present invention may be fully understood, 70 The invention further relates to a special I will now fully describe the same together form of hollow ribbed structure wherein the with some of its intended uses. ribs are perforated at their apices for the As in the aforesaid former application, reception of spaced wires, one of the wires the sheets used in the present instance are being linked or otherwise bent to connect composed of sheet metal and are re resented 75 with an opposite wire, whereby when the at n Figs- 2, 3 and 4. I pre 81' to use structure is embedded in the mass of conth S eet metal pl e H0111 S crete, it may be successfully employed in a teen (13) feet long and fro-1n twenty-four wall, partition, arch, chimney, tank, pipe, (24) to thirty-six inches wide and post, launch or other curved, cylindrical or from fourteen (14) to thirty (30) gage g0 25 analogous circular or substantially circular thick. Plates of this description have here hollow or solid device. tofore been used in the making of metal The invention consists, of the parts and lathing and when bent into desired form are the constructions arrangements and co-mbifound to possess but little inherent rigidity, nations of parts which I will hereinafter but when embedded in concrete they oonstig5 describe and claim. tute a rigid reinforcement therefor. I do In the accompanying drawings forming not limit my invention to the sizes before part of this specification, and in which simigiven or to any particular size, as it is quite lar reference characters indicate like parts evident that the size of the plates as also in the several views ;Figure 1 is a vertical the thickness will be determined largely by 90 sectional view of a telegraph or electric light the height of the wall, post, chimney, tank, pole embodying the salient features of my etc., and the length of the tunnel, pipe, invention. Fig. 2 is an enlarged horizontal launch or other object. Before being shaped sectional view of the same on the line XX for its intended position, the sheet may be of Fig. 1. Fig. 3 is a detail showing a secgenerally flat and imperforate, except for 95 tion of the metal plate before being bent into certain perforations in the apices of the circular form. Fig. 1 is a view similar to hollow ribs, which I will now describe. Fig. 3, but enlarged and showing the spaced Each sheet, A, is rolled or otherwise wires which tie to the plates and to' each formed in each side with longitudinal corother. rugations which produce hollow ribs, a, 100 In a former application filed July 13, which stand out from the plain faces of the 1910, Ser. No. 571,748, I have disclosed as plate, and contiguous portions of said plate building elements sheet metal plates rolled are so bent as to form inclined portions, 6, or otherwise formed with hollow ribs, which which diverge from the base of one ribto are made to project at right-angles from the bases of adjacent ribs on each side there- 105 one side only of the plate, the outer edges of, as shown in Figs. 3 and 1. That this arof these plates being each bent to lie in a rangement may be produced it will be ob plane substantially parallel with that of the served that the ribs project alternately in body of the plate, to form fastening flanges opposite directions, certain of the ribs proand strengthening webs, said plates being jecting from one side of the plate and the 110 designed to be embedded in concrete to form intermediate ribs projecting from the oppoflat slabs which may be completed as a finsite side of said plate; the arrangement is also such that the bases of one series of ribs will be substantially in the same, plane with the apices of the ribs of the other series. Each rib is hollow and open along one side; its other side is formed with an enlarged head or portion, 0, which may be manysided in cross section or may be given any desired shape. The bending of the plates to form the ribs, leaves a throat or opening, (2, formed between the parallel walls, 6, of the rib, and it is through this throat that a tie-wire is passed after the plate is bent into form, as I will presently describe. Each rib has a perforation formed transversely through substantially the apex of its closed side, for the reception of a suitable tie-wire.

The tie-Wires, f and g, or equivalent rods, are inserted after the plate is bent into cylindrical or curved form and said wires are passed transversely across the ribs and through the perforations thereof and which perforations may be spaced suitable distances apart according to the number of wires which it may be desired to use. Each wire is passed through the perforations of the ribs projecting from one side of the plate and over the bend or angle, Z), at one side of the throat or open side of the adjacent ribs, a portion of the wire being looped or bent at, 71,, and passed into the hollow of the adjacent rib and is thence returned on itself and carried outside this rib and over the bend or angle h at the other side of the throat or open side thereof, and thence extends through a perforation in the next suc ceeding rib. This arrangement is carried out by the wires, f and 9; one of these wires being passed through the bight of the folded portion of the other wire, as shown in Fig. 5, thereby tying the wires together and connecting the plates from end to end in series, The plates heretofore described may be readily fashioned in to a cylindrical or other columnar form for use as a reinforce for concrete telegraph, electric-light or trolley wire poles, pipes, tanks, chimneys, etc., also for the curved surfaces, tunnels, launches, bridges, and the like. hen used in the pole construction, mentioned, as shown in Fig. 1, the ribbed plates may be used as the reinforce for the base, 10, as well as for the superposed columns, 11, 12, of varying di ameters, and in each case the ribbed plates are embedded in the concrete while the outer surface of the concrete may be finished with any desired ornamentation. The base, 13, may also be filled with coarse concrete as shown in Figs. 1 and 2. The pipe, 1 for the electric conductor is shown in Fig. 1 as entering the base and extending up through the hollow columns, 11 and 12, the pole in this figure, 1, having a cement base, 10, a cement cap, 16, and suitable cement molding, 17, 18 and 19 to give a pleasing finish to the pole. The plastic material may enter the hollow ribs of the plates and in the completed structure, the plates, their ribs and the tie-wires become firmly embedded and thus constitute a strong reinforce for the various devices herein mentioned, and for any other like device, or slab or other shape requiring internal reinforcement. The meet ing edges, 20, 21, of the plates may be bent to overlap as shown in Fig. 3, or they may be formed and positioned as shown in Fig. a, the space between the terminal edges, 22, 23, of the plates in said Fig. 4 being useful for t *ing or securing the ends of the wires and which space is subsequently filled with the concrete material to make a smooth or level surface.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1.. A building element comprising a metal plate with projecting ribs running lengthwise of the plate, said ribs being perforated and projecting in opposite directions from both sides of said plate and having plane portions of substantial width intermediate of and connecting adjacent ribs, and trusswires laced through the perforations in the ribs.

2. A building element comprising a metal plate with projecting ribs running lengthwise of the plate and projecting alternately in opposite directions from the sides of the plate, said ribs being perforated, said plate having, also, plane portions of substantial width intermediate of and connecting adjacent ribs, and truss-wires laced through the perforations in the ribs and being tied one to the other.

3. A building element comprising a metal plate with projecting ribs running lengthwise thereof, and projecting alternately in opposite directions, said plate being bent so that adjacent ribs are connected by inclined portions, said ribs being hollow and open along one side, and spaced wires on opposite sides of the plate each extending from one rib to the other, one of said wires having portions looped and entering the open sides of certain of the ribs and connecting with the opposite wire at points interior of the ribs, said ribs having transverse perforations for the passage of the wires.

4. A building element comprising a sheet metal plate having projecting ribs running lengthwise thereof and alternately projecting from opposite sides of the plate, said ribs being open along one side and closed on the other and having perforations near the apices of the closed sides, said plates having, also, plane portions of substantial width intermediate of and connecting adjacent ribs, a truss-wire at one side of the plate passing through the perforations of the ribs on that side of the plate, and into the open sides of the intermediate ribs, and a second wire on the other side of the plate passing through the perforations in the ribs on that side and into the open sides of the intermediate ribs, said plates with their ribs and wires adapted to be embedded in concrete.

5. A building element comprising a plate having hollow ribs projecting alternately therefrom in opposite directions, said ribs being open on one side and closed on the other, and having perforations in their closed sides, said plates having, also, plane portions of substantial width intermediate of and connecting adjacent ribs, and trusswires on opposite sides of the plate each of said wires passing through the perforations in the ribs on the same side of the plate and into the open sides of the intermediate ribs or those ribs which project from the opposite side of the plate, said wires being connected together, and the plates and wires forming an internal reinforce for concrete construction.

6. A building element comprising a plate having hollow open-sided ribs projecting alternately in opposite directions from its opposite sides, said plate being bent so that the bases of adjacent ribs are connected by inclined portions, truss-wires on opposite sides posite sides, said plate being bent so that the bases of adjacent ribs are connected by inclined portions passing transversely through the ribs on one side of the plate and into the open sides of the ribs on the other side of the plate, one of said wires passing through the other at a point interior to each of the hollow ribs, said plate adapted to be bent into a curved or circular form and the plate with its ribs and the wires adapted to be embedded in concrete to form an internal reinforce for a columnar form.

In testimony whereof I aiiix my signa ture in presence of two witnesses.

HENRY L. LEJVEN.

WVitnesses:

HUGO P. VON WVEIDENFELD, JAMES A. GoBEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

